Children's Day in Japan
Children's Day in Japan is held on April 17. This event in the second decade of the month April is annual. 
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The Japanese company Sanrio, launched Hello Kitty in 1974. It was revealed in 2014 that the character is not a cat after all. The revelation hasn’t dampened the popularity of Hello Kitty and her friends, who remain loved by kids and adults alike.
Children's Day (こどもの日, Kodomo no Hi) is a Japanese national holiday. The day was originally called Tango no sekku (端午の節句) – one of the five annual ceremonies held at the imperial court – and was celebrated on the fifth day of the fifth moon in the Chinese calendar. After Japan switched to the Gregorian calendar, the date was moved to May 5.
Similar holidays and events, festivals and interesting facts
World Day Against Child Slavery on April 16
National Sovereignty and Children's Day in Turkey and Northern Cyprus on April 23
Children's Day in Zambia on April 24
Parental Alienation Awareness Day on April 25 (Parental alienation is a problem that most people don't know about. It is child abuse and needs to be stopped.);
Children's Day in Colombia on April 25 (celebrated on the last Saturday of April);
National Kids and Pets Day in US on April 26
National Children’s Book Week in USA on April 27 (Starts on the last Monday of April);
National Burn Prevention Day for Children and Adolescents in Mexico on April 27